baber/WOPTO huggingface dataset:
Patent GB-1534741-A (GB)
Title: Erase system for alternating current gas discharge panel displays
IPC: H01J17/00
Filed: 1976-09-30
Abstract: 1534741 Matrix displays and circuits therefor INTERNATIONAL BUSINESS MACHINES CORP 30 Sept 1976 [12 Nov 1975] 40582/76 Heading G5C In an A.C. gas discharge panel with crossed insulated electrodes in which discharges in selected (written) cells are maintained by a sustain voltage wave across all cells, erasure at cells selected therefor is initiated by substituting, preferably within one sustain cycle, two or more cycles each comprising one low wide pulse followed by an opposite high short pulse 66a, 67a (as seen in the selected cell waveform), the high pulses being preferably equal in height and sign to the last normal sustain pulse 10a. During normal sustain operation timing unit 36 grounds conductors 43 and 40, blocking transistor 38 but via transformer 41 turning on transistor 37, so putting a positive rectangular pulse 10 on buses 22 and 23; this is followed by a similar pulse on buses 30, 31 via circuit 46, seen as a negative pulse 10a in the p.d. across the horizontal-vertical electrodes of each cell. To erase a selected cell 64, row 16c and column 17c are connected to buses 23 and 30 respectively by turning transistors 19c off and 25c on. Erase unit 52 turns on transistor 56 on a signal from timing unit 36, pulsing primary 34e of transformer 34 and hence secondaries 34a-34d. Three erase pulses of half the erase voltage Ve adjusted by potentiometer 54 are applied positively 60a-60c to the select horizontal bus 23 and negatively 65a-65c to the select vertical bus 30, and reversely to the two non- select buses 22, 31. During the same period of one sustain cycle, sustain unit 46 applies three three shortened sustain pulses 50a-50c to the vertical buses 30, 31. The p.d.s. across selected, half-selected and unselected cells are then as shown, of which only that across selected cells is capable of erasing. Multiple cells in a single selected column may be erased simultaneously by switching off their transistors 19. The use of two or more erase pulse cycles allows erasure even at the maximum sustain voltage beyond which spontaneous writing occurs (Fig. 4, not shown).
Patent GB-1386040-A (GB)
Title: Cutting apparatus
IPC: B26D1/46
Filed: 1973-08-29
Abstract: 1386040 Band-knife cutting apparatus JMH HYLDIG 29 Aug 1973 [4 Sept 1972] 40586/73 Heading B4B An apparatus for cutting yieldable material 7, e.g. foamed rubber or plastics, comprises an endless band knife blade 3 having a single cutting edge 5, the blade being arranged to pass over rollers 2, 4 so as to thereby provide two runs having their cutting edges facing in opposite directions. As shown in Fig. 1, a pair of rollers 2 are mounted on a rotatable shaft 1, one roller being secured to the shaft, the other roller being freely rotatable thereon; in a modification, each wheel 2 may be secured to independent shafts which are rotated in opposite directions. A block of material 7 is mounted on a table 6 which, in use, is reciprocated under the knife so that a strip of material is cut from the block as the table is moved in each direction. In an alternative construction, the material can be stationary and the band knife mechanism moved bodily to effect the cutting. The cutting edge of the blade may be formed by a large chamfer on one side and a smaller chamfer on the other side.
Patent GB-1213122-A (GB)
Title: Clays
Inventor: NEUMANN BARBARA SUSAN
IPC: C01B33/20
Filed: 1966-09-12
Abstract: 1,213,122. Synthetic clay-like minerals. LAPORTE INDUSTRIES Ltd. 11 Dec., 1967 [12 Sept., 1966(3)], Nos. 40683/66, 40684/66 and 40685/66. Heading C1A. [Also in Divisions C3and.C5]  A process for the production of a clay-like mineral having the empirical formula given below comprises precipitating a magnesium silicate from a solution containing the cations and anions required to be present in the clay, maintaining a pH of at least 8 throughout, and, without washing free from soluble salts, heating the precipitated product under pressure to bring about crystal growth. Synthetic clay-like minerals of the following empirical formula, having a cation exchange capacity of 50 to 120 m.e.g./100 g. and when M is Na+ or Li+ a Bingham Yield Value of from 40 to 250 dynes/ cm.<SP>2</SP> as a 2% w./v. dispersion in tap water, are claimed per se: where M is a sodium, lithium or an equivalent of an organic cation and the values of a, b and c such that either a<6; b > 0 ; c>0 and b + c < 2 ; Œ(o+b+c-6)<2; or a<6; b=0; Œc<2  and Œ(a+b - 6) < 2. Preferred values of a and b are b= 06to 1.05 or, when b=0a=4À5 to 5À9, preferably 5-0 to 5-8. The organic cations may be ammonium, phosphonium, stibonium, arsonium, oxonium or sulphonium ions but are preferably ammonium ions having at least 10 carbon atoms preferably at least 18 and preferred examples are, dimethyl dioctadecyl ammonium, trimethyl octadecyl ammonium, dodecyl ammonium, hexadecyl ammonium, dioctadecyl morpholinium, 1 - propyl - 2 - octadecyl imidazolinium and bis-(2-hydroxyethyl) octadecyl ammonium ions, these may be used singly or in combinations. The clays may be used in making lubricating greases or organosols, they may also be used to form refractory articles.
Patent GB-1319752-A (GB)
Title: Fastener mechanism for a sash of a window a door or the like
IPC: E05C9/18
Filed: 1971-09-01
Abstract: 1319752 Bolts WILH FRANK GmbH 1 Sept 1971 [11 Sept 1970] 40707/71 Heading E2A A fastening for a window &c comprises a bolt 4 which slides in the window housing to engage or disengage from a notch in the window frame. The bolt projects through a slot 14 in a cover plate 1, and it has a foot 7, 8 engaging in a hole 13 in a control rod 13 which slides in a guide 3, 9 under the cover plate. Longitudinal movement of this rod moves the bolt 4 along the slot 14 to engage or release the window. Friction is provided by indents 10. In a modification (Fig. 3, not shown) the bolt comprises a stub-axle (26) carrying a roller (25) and having a circumferential neck (28) engaged by the edge of a slot 43 in the guide. In a further modification (Fig. 4, not shown) the foot (37) of the bolt has a hook (41) which engages under the edge of the slot (38) in the control rod 32. It is held there by a tab (39) engaging a hand (44) on the foot (37) and pressed out of the guide.
Patent GB-1167623-A (GB)
Title: Ethyl Esters of Unsaturated Monocarboxylic Acids
IPC: C07C69/54
Filed: 1967-09-06
Abstract: 1,167,623. Ethyl esters of unsaturated acids. MONTECATINI EDISON S.p.A. 6 Sept., 1967 [9 Sept., 1966], No. 40778/67. Heading C2C. Ethyl esters of unsaturated monocarboxylic acids of 1-4 C atoms are prepared by absorbing ethylene on an ethylsulphuric ester and subjecting the product to acidolysis with an unsaturated monocarboxylic acid of 1-4 C atoms, the ethylene : sulphuric acid molar ratio in the acidolysis being not below 1: 1. The unsaturated acid used is, for example, acrylic acid.
Patent GB-1291513-A (GB)
Title: Preparation of organophosphonous dichlorides
IPC: C07B61/00
Filed: 1970-08-25
Abstract: 1291513 Preparing organic phosphonous dichlorides STAUFFER CHEMICAL CO 25 Aug 1970 [22 Sept 1969] 40788/70 Heading C2P Organophosphorous dichlorides of formula R.PCl 2 , wherein R is a radical selected from C 1 -C 4  alkyl, C 2 -C 4  alkenyl, phenyl, naphthyl, styryl, and substituted derivatives thereof are obtained by reacting PCl 3  and a hydrocarbon or substituted hydrocarbon selected from a C 1 -C 4  alkane, a C 2 -C 4  alkene, benzene, naphthalene, styrene, or substituted derivative thereof, in the presence of a catalytic amount of phosgene at a temperature of at least 350 C. Specified substituents on the hydrocarbon group are CN, Cl and F. The process can be carried out batchwise or continuously and is suitably carried out in a thin tube or a tube packed with porcelain rings. Reference is made for comparative purposes to the use of COBr 2 , chlorobenzene, chlorine and oxygen as catalysts in the same reaction.
Patent GB-1031777-A (GB)
Title: Fastener device for supporting a cable or the like in an aperture in a support
Inventor: PEARSON ARTHUR STANLEY
IPC: H02G3/08
Filed: 1962-10-29
Abstract: 1,031,777. Grommets. CARR FASTENER CO. Ltd. Sept. 3, 1963 [Oct. 29, 1962], No. 40851/62. Heading F2H. [Also in Division H2] A grommet comprises two parts, a resilient socket part 1 (Figs. 1-3, not shown) which is secured in the aperture of a support 2 and a sleeve-like member 2 (Figs. 4-6, not shown) which grips the cable and which is received in the bore of the socket part, means being provided on each part to lock together the two parts when the cable-gripping part is inserted into the socket. The socket part 1, moulded from plastics material, has an internally tapered inner wall 3 and a thinner, outer wall 4 around it, spaced apart by ribs 7. The resilient socket part 1 is pushed into the aperture in a panel, such that the shoulder 8 formed on its outer wall, snaps under the edge of the aperture, and the flange 5 abuts the other face. The tapered sleeve part 2 is moulded from plastics material, to form two complementary parts 11, 11a hinged along one side edge by an integral web 12. The sleeve is mounted around a cable b (Fig. 7, not shown) and is pushed into the socket part 1, the lugs 15 on the sides of the sleeves travelling along recesses 10 in the inner surface of the outer wall 4. The sleeve is rotated through a small angle to cause the lugs 15 to enter the bayonet slots 9 of the socket, and lock the sleeve in position. In another embodiment, the outer wall 4a, Fig. 9 (not shown), is formed in segments to allow greater flexibility.
Patent GB-959455-A (GB)
Title: Method of coating surfaces of macromolecular organic substances
IPC: C08J7/048
Filed: 1960-11-28
Abstract: A composition comprises an aqueous vinylidene chloride copolymer dispersion in which 1 to 99% of the particles have a particle size less than 0.15m  and the remainder a particle size between 0.15 and 0.5m . The polymer dispersions used contain 70-95% by weight of vinylidene chloride and 30-5% by weight of one or more copolymerizable monomers. Monomers specified are vinyl chloride, acrylonitrile, methacrylonitrile, esters of acrylic acid, methacrylic acid, maleic acid, fumaric acid and itaconic acid with alcohols containing 1-6 carbon atoms, methyl vinyl ketone, vinyl acetate and other vinyl esters, styrene, dichlorovinylidene fluoride, butadiene, chlorobutadiene, isoprene and vinyl pyridine. The dispersion may also contain 0.01-5% of a slip agent such as carnauba wax, spemacetic wax, candellila wax, palm wax, hydrogenated castor oil, benzyl stearate, pentaerythritol distearate, pentaerythritol tetrastearate and n-octadecyl stearate. The dispersions are preferably made by mixing two aqueous dispersions of the copolymers each having the requisite particles size. Specifications 663,645, 679,054, 744,669, 766,827 and 804,285 are referred to.ALSO:Articles of a macromolecular organic substance are coated with an aqueous vinylidene chloride copolymer dispersion of which 1-99% by weight of the copolymer particles have a size not greater than 0,15 micron and the remainder of the copolymer particles have a size within the range of 0,15-0,5 micron. The articles may be moulded bodies, hollow bodies, tubes, plates, films and sheets of macromolecular substances of natural or synthetic origin, examples of which are given.  Preferably the dispersions of polymer are made by mixing two copolymer dispersions, one containing particles with the larger size distribution and the other with the smaller.  In the examples, p  copolymers of vinylidene chloride/methyl methacrylate/acrylonitrile/itaconic acid were mixed, and a copolymer as above was mixed with a copolymer of vinylidene chloride/methyl methacrylate/itaconic acid.  Slip agents such as carnauba wax may be added.  Specifications 663,645, 679,054, 744,669, 766,827 and 804,285 are referred to.
Patent GB-1102876-A (GB)
Title: A filing or sorting panel or board for documents and a method of producing it
IPC: B42F17/00
Filed: 1966-09-14
Abstract: 1,102,876. Visible card indexes. P. JOCHIM. 14 Sept., 1966 [17 Sept., 1965], No. 41013/66. Heading B6E. A device for filing cards, documents &c. in vertical overlapping relationship comprises a base panel 11 to which are welded at their lower edges 14 several horizontal strips which overlap vertically to provide pockets to receive the cards, and wherein the strips have apertures 10 therein through which welding prongs may be inserted to reach the strip to be welded, and so that each weld is applied to a single strip only irrespective of the number of overlapping strips. As shown, each strip has a saw-toothed lower edge 4 and an upper rectilinear edge 5, and each tooth has an aperture 10 therein. When the strips are originally cut from a web, each has opposed end tabs 6 provided with a hole 7, and the requisite number of strips (2, Fig. 2) is placed over a panel 11 and on a mounting- board (8, Fig. 4) having rows of registration pins (9) which engage the holes 7 and space vertically the strips relatively to the panel 11. The assembly is then welded at the spots 14 by an electrode (Fig. 6) having rows of welding prongs (13), and a shearing edge (12) which welds the tabs 6 along lines 15 and severs the ends of the tabs. Strips may also be welded to the opposite side of the panel 11 to form a second series of pockets. The panels 11 may also be sheared along lines 16 into smaller panels. Examples of pockets (Figs. 7 and 8) holding files (20) are also described. The panel 11 and the pocket strips are of weldable synthetic material which is translucent and pliable. The filing devices may form the pages of a filing book or album.
Patent GB-1280702-A (GB)
Title: Group supervisory control system for elevators
IPC: B66B1/20
Filed: 1969-08-18
Abstract: 1280702 Lift control systems HITACHI Ltd 18 Aug 1969 [21 Aug 1968 27 Dec 1968 31 Jan 1969] 41074/69 Heading B8L In a system for controlling a plurality of lifts in different operational modes, means are provided for detecting a number of factors indicative of traffic demand and for automatically selecting the optimum mode of operation to meet the indicated demand. The system is described in mathematical terms in which each of the operational modes shown ("lunch time " " up peak ", &c.) is represented as one or more points (termed prototype points) on a plot of l dimensions, each dimension corresponding to one of the factors which is detected to determine the demand; an actual demand situation is similarly plotted as a point and the system determines which of the " prototype points " is closest to the demand point. Comparison of the points is made in " pattern classifiers " PD1... PD3 in which the " prototype points " are predetermined by potentiometer settings. PD1, for example, receives two signals indicative of demand, namely, the weight of cages departing and arriving at a lunch floor. These, with a reference voltage, are supplied to groups of potentiometers, each group differently set to represent a prototype point and their outputs are connected through summing amplifiers to a diode network arranged so that only that diode associated with the nearest point will conduct (Fig. 13, not shown). PD1 has three prototype points representing lunch time and two for other conditions, and the output is on one or the other of the lines shown as " lunch time " and " others " connected to a logic circuit LG. This comprises interlocking AND gates (if one is on the others must be off) which correlate the outputs from all the classifiers and switch the system to the required mode of operation (Fig. 19, not shown). Pre-set time-of-day switches may be used in the logic circuit so that at the set times " heavy up " and " heavy down " signals from PD2 cause " up peak " and " down peak " operation instead of simply " heavy up " and " heavy down ". Other demand indicative factors detected are the load on all cages moving up and down (in SD2) and the number of hall calls, both totals and in the upper and lower halves (zones) respectively (in TD3).
Patent GB-1209274-A (GB)
Title: Improvements in or relating to flow control devices
Inventor: CLEALL ALFRED FRANK
IPC: F16K11/085
Filed: 1968-08-29
Abstract: 1,209,274. Burner control. BABCOCK & WILCOX Ltd. 29 Aug., 1969 [29 Aug., 1968], No. 41300/68. Heading F4T. [Also in Division F2] A rotary plug 19 with passages 16 is held relative to a sleeve 15 with passages 17 to maintain a predetermined flow rate therethrough by a spring-loaded peg 31 in a cap 20 of the plug entering into one of a number of recesses in an indexing plate 18 rigid with the sleeve, one of the recesses being a slot inclined to the radius and formed in a block 24 radially adjustable by screw 26 to alter the relative positions of the plug and sleeve when the peg is in the slot. The passages 17 are connected on one side of the plug to two tubes 11 interconnecting two similar valves and each connected to an inlet, one respectively for steam and the other for oil. On the other side of the plug the passages of each valve connect with passages 6, 8 in an atomizer body and leading to coaxial ducts 7A, 7B, the latter from each valve feeding a separate burner of a dual arrangement so that one may be removed at a time for maintenance. The peg 31 is removed from a recess by a hand-pull 33 and may be turned to position the bottom of lugs 34 on shoulders (38) of lugs 37 to prevent the spring 30 from moving the peg downwards. The bottom of the peg is formed as an elongated collar (40) which engages one of a plurality of slots (42) each adjacent a recess so that if the cap 20 is rotated in the correct direction the peg is rotated to move the lugs 34 off the shoulders 38 and the spring 30 moves the peg on to the indexing plate ready for the next recess but if the cap is rotated in the wrong direction the lugs 34 abut the lugs 37 to prevent rotation. In the off-position of the valve a bracket 43 on the atomizer body may be removed since a recess of the cap is opposite and thereafter a spring-loaded plunger 45 enters the recess to prevent opening of the valve while the burner is removed.
Patent GB-1439237-A (GB)
Title: Elastomeric helicopter rotor head with dynamic and static blade coning and droop stops
IPC: B64C27/35
Filed: 1973-09-05
Abstract: 1439237 Helicopter rotors UNITED AIRCRAFT CORP 5 Sept 1973 [5 Sept 1972 (2)] 41727/73 Heading B7W A helicopter rotor 10 has a hub 12 rotatable about an axis 14 and a plurality of blades 16 each extended inwardly by a yoke member 22 positioned between the arms of a yoke 20 extending from hub 12, a part-spherical laminated elastomeric bearing 18 being secured at 30 and 28 respectively to the yokes to give the blade universal freedom of movement about the point of intersection 37 of the pitch-change axis 32 lead-lag axis 34 and flapping axis 36. The point 37 is concentric with a part-spherical ball 56 bolted at 58 to the root end of the blade and forming the spigot of a centring bearing 27 which comprises alternate layers of elastomer and rigid laminates bonded to the outer surface of ball 56 and to an outer race 60 carried by yoke 20. A lag-lead damper (not shown) is connected to yoke 22 by an elastomeric bearing 94. Coning and droop stops are provided for each blade and so arranged that when the blade is at either its coning or droop stops leadlag motion of the blade does not change the angle of cone or droop. A ring 70 is mounted for free rotation on a bearing 72 and is formed with a frusto-conical face 80 profiled to cooperate with the surface 82 of a coning limit stop 84 secured to yoke 20. As shown in Fig. 11, yoke 20 carries also a bracket 102 which supports a barrel shape member 118 and a pivoted member 88 having faces 86 and 100 which respectively co-operate with the surface 80 of ring 70 and the outer surface of the barrel shape member 118, the member having a balance weight 123 and a balance spring 122, Fig. 8. When the rotor is stationary or operating at low speed spring 122 pulls the member 88 into position between ring 70 and member 118 to form a static droop stop. When rotor speed increases the centrifugal effect of the weight 123 overcomes the spring and moves the member 88 clear of the member 118 which then serves as a dynamic droop stop. An alternative construction of the centre spigot is described with reference to Fig. 1 (not shown).
Patent GB-1329281-A (GB)
Title: Integrated drive and generator assembly
IPC: F16H47/04
Filed: 1970-09-02
Abstract: 1329281 Variable speed gears SUNDSTRAND CORP 2 Sept 1970 [5 Sept 1969] 42075/70 Heading F2D [Also in Division H2] An integrated drive and generator comprises a generator stator 92 and a rotor 98 driven at constant speed by a gear differential 20 in which a control gear 40 and the input 20 are connected by a variable ratio back-to-back pair of hydrostatic units 34, 36 controlled (e.g. at 82) by hydraulic fluid supplied from a sump 115 from which cooling fluid is supplied to the generator (see Division H2). The gear differential may comprise an input planet carrier 22 carrying intermeshing long pinions 24, 25 each meshing an internally toothed 41, 49 sleeve 40, 48, one of which is the control gear and the other is connected via a one-way clutch 52 with the rotor 98. The rotor, carrier 22 and sleeves 40, 48 may be coaxial. In Fig. 2 (not shown) the rotor 98 is mounted on a hollow shaft inside which the differential input extends to the differential, the sleeve 48 being encircled by the hollow shaft, the sleeve 40 extending beyond. Hydraulic system.-The hydrostatic units 34, 36 are positive displacement units, one 34 having its displacement varied by a swash plate 182 tilted by an hydraulic control 82, 222. Fluid to the control is supplied by a single pump 88, which may also supply generator cooling fluid and lubricating fluid for the differential, and is controlled by an output driven governor 78, 218, e.g. by axially moving a sleeve 219. An underspeed switch (514), Fig. 16, may be connected to the governor to disconnect the generator when the input speed is insufficient for the drive to maintain the desired generator speed.
Patent GB-908446-A (GB)
Title: Improvements in or relating to air cooled surface condensers
IPC: F28B1/06
Filed: 1959-12-15
Abstract: An air cooled surface condenser for steam power plant includes a supporting structure which may be of steel or reinforced concrete providing a platform 30 in which the air fans are mounted, some of the condenser elements 11, 12, 111, 121 being arranged in spaced apart units which may each as shown, be disposed in inverted-V or roof fashion above and along the sides of the platform and the remaining elements 9, 10, 91, 101 being arranged beneath the central zone of the platform These latter elements may be disposed in V-formation as shown, or vertically, and the arrangement is such that cooling air flowing in direction X is drawn over the elements 9, 10, 91, 101 by the fans 23, 231 and blown over the elements 11, 12, 111, 121 by the fans 24, 241.  The fans 24, 241 are preferably equipped with regulating means for varying air flow whilst the fans 23, 231 are preferably designed for a constant speed and are reversible so that under certain <PICT:0908446/III/1> <PICT:0908446/III/2> operating conditions, e.g. in winter and at low loads, freezing up of the plant may be prevented by blowing comparatively warm air from above the condenser downwardly over the elements 9, 10, 91, 101 and this air is thereafter picked up and blown over the elements 11, 12, 111, 121 by the fans 24, 241.  It is stated also that freezing up of the condenser elements under such conditions may also be prevented by regulation of the fans 24, 241, the fans 23, 231 then being switched off.  Th condenser elements preferably comprise finned tubes to which steam is supplied through a main duct 1, branch ducts 7, 71 and headers 6, 61, 8, 81. Condensate collecting headers 18, 181 (see Fig. 2) are each provided with an internal baffle 21 or 211 which directs the condensate into collector lines 20, 201 and assists removal of uncondensed constituents through suction lines 22, 221. The condenser elements 10, 101 extend above the branch ducts 6, 61 and function as reflux condensers.